Nocturnal Dial Key Ring shell Miniature astronomical ring dial

Miniature astronomical ring dial

Used for finding your latitude this piece is both useful and beautiful

This reproduction of an early optical device employing the phenomenon of "Retinal Persistence" or Image Retention" is a fine piece for explaining how animated movies work

called the rete

Nocturnal Dial Key Ring shell Miniature astronomical ring dialThis is a replica of a Nocturnal and Tide Computer from 1570 signed by Humphrey Cole. Cole was the first maker of English instruments having learned the craft from Flemish immigrants in the final years of the Tudor dynasty. The original can be found in the British Museum, London. Legend has it that the Nocturnal Astrolabe was invented by Raimund Lill to administer doses of medicine to patients during the night. The Nocturnal is a star clock used to